Some 2017-2018 F-150 and 2018 Navigator vehicles equipped with a 3.5L EcoBoost and built on or before 09-Mar-2018 may exhibit excessive oil consumption. If there are no visible external oil leaks, replace both engine valve covers. Refer to Workshop Manual, Section 303-01. For claiming, use causal part 6582 and applicable labor operations in Section 6 of the Service Labor Time Standards (SLTS) Manual.
